Well plunger and packing



Jan- 31, 1.933 J. w. PlPPlN WELL. PLUNGER AND PACKING y 1 f1 1 n. \1

Filed Jap. 5. 1931 WITNESS Patented Jan. 31, 1933 UNITED y stares JOHN W. PIPPIN, on CORPUS cHRIs'rI, TEXAS, AssIGNon or ONE-HALF To' H. npfefILns;y

OF NUECES COUNTY, TEXAS, AND ONE-HALFVTO' W. F. H LL AND GEORGE F HARRIS COUNTY, TEXAS WELL PLUNGER `man rAcxIitG Application med January 3.1931.'4 seal No. 506.470.

The present invention ,relates tol well plungers and particularly to packing and lubricating means there for.

The present invention is a continuation in part of my copending application Serial No.

provide a well plunger which is equipped with bufling elements so that the working bar- Y pump taken on the line 2-2 of .rel will be polished incident to the reciprocation of the plungerv and thereby cause` the latter to operate in a smooth manner. n

A further object of the invention is to provide means for wiping and oiling the working barrel above and below the lifting cups of the well plunger in order to prolong the wear of said cups and increase the' smoothness of operation of the pump.

A still further object is to provide an improved head for the plungerwhich will provide an unrestricted passage for `the upward flow of oil.

Other objects will become apparent during the course of the following detailed description when read in conjunction with the accompanying drawing which forms apart of this specification and in which Figures 1 and 1a are continuous views in vertical section of a pump plunger embodying my invention; Y y

Fig. 2 is a cross section ofa pjart of the Referring now more specifically tothe drawing, 5 indicates the working barrelv in which a pump plunger 6 is reciprocated by a conventional pump rigging including the pump rod 7 l The pump plunger 6 includesia cylindrical ball cageV 8 having an interiorly threaded upper end 9 and an interiorly threaded lower end 10.. Arranged below the ball cage 8 is a vertically extending conduit or pipe 11 having a circular eXteriorly threaded head 12 which is threadedly engaged with the threads 10. Theupper face of thehead 12 is formed with a seat for the ball valve 13.

A conduit or pipe 14 extends below the conduit 11 and in longitudinal alinement therewith. The conduit 14 is provided with a coupling collar 15 at its upper end which 112andcouplingcollar 15.

iss-threaded@ engagea wat theiower @ad of the pipep11. The-'usualleather4 lifting clips v 16vY and spacer elements 17 are received on the pipe l11 and a'reheldi'n place' -by the head A cup-shaped einher.V 18 is threadedly eir-` upperf end of theball cage'8 andy depends within the ball cage.- This 'cup-shap'ed"inem-4v ber -18 isinteriorly threaded as `at 19 forthe reception of the lower 'end of al vertically:ex'-y i gaged with the interior screw thread 9gat the tending conduit 20 whichhasits upper end threaded 'into' a head'21 as indicated at 22. The head 21 provided witha'hollow frusto .conical shaped upper'4 end 23having vafplu'- rality of radially disposed outlet openings 24. -The outlet openings 24are disposed out? wardly andup'wardly-'invsuch a manner as to allow practically free passage'of theoil from the conduit 20 through the' lheadjupwardly through the workingV barrel. The'head'21 terminates in a couplingsha'nk 25 Vwhich is threadedly engagedwith the lower end of the pumprod?. A

ofthe working barrel above and below the lifting'cupsltduring the reciprocationofthe n order to clean and polish theiiinterior plunger, buingfrings 26 are arrangedfon the'pipes vor `conduits 14.- and`20. These buffing rings 26 are preferably formed from any suitable andv durable brous `material ormay becomposed of a composition of vcottonv or.

otheipermeable feltllike material.` The buf-V ing rings '26 are preferably' slightly greater than thelba'lV metallic spacer rings'27 receivedbetweeneach ycf a `diameter posite faces bevelled towards'the inneredges cage 8 and haver VVbuiingring, the spacer rings having theirop;y i

pipe 15 is threadedly engaged Vwithia-"collar 29of the next .lower section iof "the-pump'- plungerthe vcollar 29:.serving toretain'the bufferfand'spacer-ringsupon the pipe 14Lfi f In order tovprevent unduedrying ofthe' surface of the workingfbarrel the bung rings 26 and therebycause undue wear ofthe leather lifting cups 16,l means :havebeen proj videdfo`r lubricating the `interior of the working barrel. Aplurality of radially disn posed vertical slots 28 are formed in the conduits 14 and 20 respectively directly behind f the buiing rings 26.k These slots 28 allow the to saturate the rings 26 so that they will leave a coating of clean oil on the interior .of the working barrel thereby lubricating the same' undue 'swear on the lifting *cup-$16.1. n v v I. .y Y Inoperation, during reciprocation* of thev and preventing plunger 6, the bufngrings 26 will effectually prevent injury to the lifting cups 1,6. At they same time, due to the fact that they are satuwipe sand and dirt from the interior ofthe working barrel and'polish the sameV so as to rated with oil whichreaches them Vthrough thellsl'ots 28 the' buiing rings Vwill leave a thin coating of oilupon the-interior of the barrel thereby insuring 1 smooth operation. of the pump and further ypreventingundue wear" upon Ithe lifting cups. 16 due to dryness of Y the barrel.v A A v Y By providing the. hollow head21`of the plunger-with large outwardly andupwardly4 Y i directedradialfopenings 24, a free flow of oil is-in'duced duetothe factthatlittle orno obvstruction iszfpl'aced inY the upward path of travel of thefoil as. ity'emerges from theupper Vendof the pipe20. This :is considered `an i n Y important feature of the invention due to the yfact thatsand and dirt containedl in theoil will, have lesstendencyV to settlefzuidA work y y down around the sides' of the pump as vthe upward ow'of oilis unrestri'ct'ed.Y`

Although .a preferred embodiment of the invention hasY been lshown iand 'described,` it

will `be understood that various changes in the detailsV of-constructionmay be made-without departing from the spirit ofthe invention as i 'deiinedby the appended claims. A

Whatiscflaimed is: y .l 1

`1. In combination, a pump plunger provided with flexible lcups intermediate its ends, a *bufi'ng elementV arrangedvr at leither side` of thecupsfor*polishing vvthe interior of the Y v WQrking barrel Vin-v which the plunger` is op-4 era-ting,l andmeans Y forA saturatin'g-l said buffn' ing elements withroil whereby ,to lubricate the-interior ofsaidfworking barrel*l y2. In combination, a` working. barrel/and,

pum-p; plunger operating therein, s saidv pump plungerlhavingfavertically extending con.V` duit therethrough V"and, bei-ng yprovided with s'l'lexible lifting cups intermediate its ends,

buiiing elementsreceived on said conduit and arranged `above and :belowfsaid lifting/cups forvv polishing the 'interiorV ofsaidy working 'bai-rel, saidV conduit vbeing"'provided with ras '-theret-hrough tol Contact with'and saturate ,Y v

icatefthe- "dially disposed openingsrimmediately adja# cent said-buffing vrings to permit oil passing said buiiing rings wherebyftoilubr interiorv` of said Workingbarrel. -L

, JOHN w. PIPPin; 

